Velodyne VA-907.2 User Manual download pdf (Page 4)

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enced by placement, depending on the acoustic properties of the

listening room. Typically, the optimum location for a subwoofer is

tucked away in a corner of your listening room. This location will

usually offer the greatest output levels and optimum low frequency

extension. The worst location for a subwoofer is typically far away

from any walls, and close to the center of your room. Avoid these

locations when possible. When using a pair of Velodyne subwoof-

ers in stereo, it is preferable to place each subwoofer by the satellite

of the same channel.

CAUTION!

The VA series subwoofers have amplifiers built into the cabinet. Do

not place the cabinet next to sources of heat such as furnace

registers, radiators, etc. The power cord should be routed in such a

way that it will not be walked on, pinched, or compressed in any way.

Regardless of where you install your VA-907.2 subwoofer, it must

remain in an upright position (passive radiator facing downward).

Using, shipping, or otherwise storing the VA-907.2 subwoofer in

any other position for an extended period of time may result in

damage to the unit not covered by warranty.

The VA-907.2 subwoofer is magnetically shielded to reduce mag-

netic emission from its cabinet to increase the number of possible

locations available for placement. However, this shielding may not

be adequate for all installations. Certain types of televisions are

particularly sensitive to stray magnetic fields. If your television

produces distorted colors after installation of your VA-907.2 sub-

woofer, simply increase the distance between your television and

the VA-907.2 until normal color and operation is returned.

Care of your subwoofer

Do not use any harsh detergents or chemicals to clean the cabinet.

Abrasives, detergents, or cleaning solutions may damage the finish

on the cabinet. We recommend using a damp cloth to clean the

cabinet.

During normal conditions, the VA-907.2 subwoofer may be left on

continued. . .

Installation

Your new VA-907.2 subwoofer system provides for a number of

installation options. Read all the installation information below in

order to determine which installation option is best for your system.

Remember to perform all installation procedures with system

power turned off.

Inputs

Your new VA-907.2 subwoofer is equipped with both speaker-level

and line-level inputs. Use the LINE-IN jacks when connecting your

subwoofer to a pre-amp, signal processor, or line-level crossover.

The FROM AMPLIFIER jacks connect directly to the speaker

outputs of a integrated amplifier or receiver. Your amplifier section

will notice no additional loading effects when you use these inputs

because of their high impedance.

Note

Do not use both LINE-IN and FROM AMPLIFIER inputs simulta-

neously.

Caution!

Polarity is critical when using speaker level inputs. Reversing the

polarity of speaker level inputs can damage the unit.

Volume control

This control allows you to balance the output from the subwoofer to

the main speakers in your system. This control should be set to

achieve similar volume level from both the main speakers and

subwoofer.

Low-pass crossover

Both sets of inputs sum the left and right channels together and the

resulting signal is passed through an adjustable low-pass crossover

before being amplified. The crossover control allows you to adjust

the upper limit of the subwoofer's frequency response from 40 to

120 Hz. The subwoofer's response will begin rolling off above the

frequency you set this control to.

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Velodyne VA-907.2 User Manual Page 4

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